Yahoo Mail IOS iPhone unable to attach a PDF

After a Update of the yahoo mail app it is impossible to attach a PDF from the Files app. This was a function that worked before.

I have tried to set up my yahoo mail account through the ios mail app and even here when sending the email I get prompted:

“”This attachment may be too large (69,5 MB) to send by email.

Do you want to use Mail Drop to deliver the attachment using

¡Cloud? It will be available for the next 30 days. “”

After going ahead with the try sending attachments option the email is not sent and I get prompted:

””Cannot Send Mail

The connection to the outgoing server

"apple.smtp.mail.yahoo.com" failed.

Additional Outgoing Mail Servers can be configured for Mail accounts in

Settings > Mail > Accounts.””